[Travis McGee]

I worry more about an economy killer, such as 100# of anthrax spread an ounce at a time through the USPS, UPS, FEDEX, subways, airports etc.

The transportaion infrastructure would utterly collapse.

[Southack]

"The transportaion infrastructure would utterly collapse."

... be delayed by at least a day by the new irradiation (for mail) and inspections programs (for deliveries) put into place after such an anthrax attack as that described above.